A suspension device of a pay-off trolley for stringing construction

Abstract

The application discloses a suspension device of a pay-off trolley for stringing construction, which comprises a frame body, a group of moving blocks are slidably connected to the inner wall of the frame body, the side faces of the moving blocks close to each other are jointly and rotatably connected with a trolley body, a threaded rod is threadedly connected to each moving block, the bottom end of each threaded rod extends to the lower side of the frame body and is fixedly connected with a worm gear, the top end of each threaded rod is rotatably connected with the inner top wall of the frame body, and a double-head motor is installed on the bottom surface of the frame body. The device is provided with the double-head motor, the worm, the worm gear, the threaded rod and the moving blocks, the working of the double-head motor can drive the worm to rotate, the worm drives the worm gear to rotate, the threaded rod rotates, the moving blocks drive the trolley body to ascend and descend on the threaded rod, the cable curvature can be adjusted, the standing of the cable can be further accurately controlled, the trolley body is prevented from being eccentrically loaded, and the abrasion of the pulley is prevented.

Description

Technical Field

[0001] This application relates to the field of overhead line construction technology, and in particular to a suspension device for a line-laying pulley used in overhead line construction. Background Technology

[0002] The stringing pulley is a core auxiliary device for overhead line construction. It is used to support the conductors and ground wires as they slide between poles and towers, reducing conductor wear and tension loss. The suspension device, as the connecting carrier between the stringing pulley and the poles and towers, directly affects the safety and efficiency of overhead line construction.

[0003] Current suspension devices are inconvenient to adjust in height and cannot flexibly adjust the position of the pulley according to the sag requirements of the conductor, resulting in difficulty in controlling conductor tension, easy to cause uneven load on the pulley, and accelerated wear of the pulley. To address these issues, we propose a suspension device for a stringing pulley used in overhead line construction. Utility Model Content

[0004] The purpose of this application is to provide a suspension device for a wire-laying pulley used in overhead line construction, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A suspension device for a wire-laying pulley used in overhead line construction includes a frame. A set of movable blocks are slidably connected to the inner wall of the frame. The pulley body is rotatably connected to one side of each set of movable blocks that are close to each other. Each movable block is threaded with a threaded rod. The bottom end of each threaded rod extends to the bottom of the frame and is fixedly connected to a worm gear. The top end of each threaded rod is rotatably connected to the inner top wall of the frame. A double-headed motor is installed on the bottom surface of the frame. Both output ends of the double-headed motor are fixedly connected to worm gears, and each worm gear meshes with a worm gear.

[0007] In a further embodiment, each worm gear is rotatably connected to a hanging plate at its other end, and the top of each hanging plate is connected to the bottom surface of the frame.

[0008] In a further embodiment, a lifting ring is fixedly connected to the upper surface of the frame.

[0009] In a further embodiment, connecting columns are fixedly connected to both the left and right sides of the frame, and an L-shaped plate is rotatably connected to the outer surface of each connecting column. A fastening ring is fixedly connected to the bottom end of each L-shaped plate, and a set of fastening rings are connected to each other by a set of bolts.

[0010] In a further embodiment, a connecting plate is fixedly connected to the other end of each connecting post, and a ring of through holes is opened on one side of each connecting plate. A ring of threaded holes is opened on one side of each L-shaped plate. A screw is installed inside one of the through holes in a set of through holes, and the other end of the screw is threadedly connected to the threaded hole.

[0011] In a further embodiment, the exterior of the trolley body is provided with a wear-resistant bushing.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This application utilizes a combination of a dual-head motor, worm gear, worm wheel, threaded rod, and moving block. The dual-head motor drives the worm gear to rotate, which in turn drives the worm wheel to rotate. Simultaneously, the threaded rod rotates, and the moving block causes the trolley body to rise and fall on the threaded rod. This allows for adjustment of the cable curvature and more precise control over the cable's upright position, preventing uneven loading of the trolley body and thus preventing wear on the pulley. The combination of connecting columns, connecting plates, through holes, threaded holes, and screws allows for adjustment of the frame angle, ensuring that the trolley body can easily accommodate the cable. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall three-dimensional structure of the suspension device for the wire-laying pulley used in overhead line construction.

[0015] Figure 2 A three-dimensional structural schematic diagram of the frame of the suspension device for the stringing pulley used in overhead line construction.

[0016] Figure 3 A three-dimensional structural schematic diagram of the L-shaped plate side view of the suspension device for the wire-laying pulley used in overhead line construction.

[0017] In the diagram: 1. Frame; 2. Lifting ring; 3. Connecting plate; 4. Connecting column; 5. Fastening ring; 6. Bolt; 7. L-shaped plate; 8. Screw; 9. Trolley body; 10. Threaded rod; 11. Moving block; 12. Lifting plate; 13. Worm gear; 14. Double-headed motor; 15. Worm; 16. Threaded hole; 17. Through hole. Detailed Implementation

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 In this utility model, a suspension device for a wire laying pulley for overhead line construction includes a frame 1, and a lifting ring 2 is fixedly connected to the upper surface of the frame 1. The lifting ring 2 can be used to initially fix the frame 1.

[0021] Connecting posts 4 are fixedly connected to both the left and right sides of the frame 1. An L-shaped plate 7 is rotatably connected to the outer surface of each connecting post 4. A fastening ring 5 is fixedly connected to the bottom end of each L-shaped plate 7. A set of fastening rings 5 ​​are connected by a set of bolts 6. By fitting the fastening ring 5 onto the outside of the pole, the fastening bolts 6 can stabilize the fastening ring 5 on the pole. A connecting plate 3 is fixedly connected to the other end of each connecting post 4. A ring of through holes 17 is opened on one side of each connecting plate 3. A ring of threaded holes 16 is opened on one side of each L-shaped plate 7. A screw 8 is installed inside one of the through holes 17, and the other end of the screw 8 is threadedly connected to the threaded hole 16. By adjusting the connection position of the screw 8 with the through hole 17 and the threaded hole 16, the angle of the frame 1 can be adjusted.

[0022] A set of movable blocks 11 are slidably connected to the inner wall of the frame 1. A trolley body 9 is rotatably connected to one side of each movable block 11 that is close to the other. Each movable block 11 is threaded with a threaded rod 10. The bottom end of each threaded rod 10 extends to the bottom of the frame 1 and is fixedly connected to a worm gear 13. The top end of each threaded rod 10 is rotatably connected to the inner top wall of the frame 1. A double-headed motor 14 is mounted on the bottom surface of the frame 1. Worms 15 are fixedly connected to both output ends of the double-headed motor 14. Each worm 15 meshes with a worm gear 13, controlling the operation of the double-headed motor 14. The head motor 14 drives the worm gear 15 to rotate, and the worm gear 15 drives the worm wheel 13 to rotate. The threaded rod 10 rotates synchronously, and the moving block 11 rises and falls on the threaded rod 10. The trolley body 9 also rises and falls synchronously, thereby adjusting the cable curvature and further precisely controlling the cable's upright position to prevent the trolley body 9 from being unbalanced and thus preventing wear on the pulley. Each worm gear 15 is rotatably connected to a hanging plate 12 at the other end. The top of each hanging plate 12 is connected to the bottom surface of the frame 1. The hanging plate 12 can be used to suspend and reinforce the worm gear 15, thereby ensuring its stability during rotation.

[0023] The exterior of the trolley body 9 is provided with a wear-resistant bushing, which can enhance the service life of the trolley body 9.

[0024] The working principle of this application is as follows: When in use, the fastening ring 5 can be fitted onto the outside of the pole, and then the bolt 6 is tightened to fasten it between the fastening rings 5, thereby stabilizing the L-shaped plate 7 outside the pole. Then, the frame 1 is deflected until the frame 1 reaches a suitable angle. Then, the screw 8 is passed through the through hole 17 and threadedly connected to the threaded hole 16. Then, the cable is passed through the trolley body 9. When the height of the trolley body 9 needs to be adjusted, the double-headed motor 14 is controlled to work. The double-headed motor 14 drives the worm gear 15 to rotate. At the same time, the worm gear 15 drives the worm wheel 13 to rotate, and the threaded rod 10 will rotate synchronously. The moving block 11 will rise and fall on the threaded rod 10, and the trolley body 9 will also rise and fall synchronously, thereby adjusting the cable curvature and further precisely controlling the cable's standing position to prevent the trolley body 9 from being unbalanced, thereby preventing wear of the pulley.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A suspension device for a wire-laying pulley used in overhead line construction, characterized in that: The system includes a frame (1), on which a set of movable blocks (11) are slidably connected. The movable blocks (11) are rotatably connected to a trolley body (9) on their adjacent sides. Each movable block (11) is threaded with a threaded rod (10). The bottom end of each threaded rod (10) extends to the bottom of the frame (1) and is fixedly connected to a worm gear (13). The top end of each threaded rod (10) is rotatably connected to the inner top wall of the frame (1). A double-headed motor (14) is installed on the bottom surface of the frame (1). Both output ends of the double-headed motor (14) are fixedly connected to worm gears (15). Each worm gear (15) meshes with a worm gear (13).

2. The suspension device for a wire-laying pulley for overhead line construction according to claim 1, characterized in that: Each of the worm gears (15) is rotatably connected to a hanging plate (12) at the other end, and the top of each hanging plate (12) is connected to the bottom surface of the frame (1).

3. The suspension device for a wire-laying pulley for overhead line construction according to claim 1, characterized in that: A lifting ring (2) is fixedly connected to the upper surface of the frame (1).

4. The suspension device for a wire-laying pulley for overhead line construction according to claim 1, characterized in that: The frame (1) is fixedly connected to the left and right sides with connecting columns (4), and each connecting column (4) is rotatably connected to an L-shaped plate (7) on its outer surface. Each L-shaped plate (7) is fixedly connected to the bottom end with a fastening ring (5). A set of fastening rings (5) are connected to each other by a set of bolts (6).

5. The suspension device for a wire-laying pulley for overhead line construction according to claim 4, characterized in that: Each of the connecting posts (4) is fixedly connected to a connecting plate (3) at the other end. Each of the connecting plates (3) has annularly arranged through holes (17) on one side. Each of the L-shaped plates (7) has annularly arranged threaded holes (16) on one side. A screw (8) is provided inside one of the through holes (17) in a set of through holes (17), and the other end of the screw (8) is threadedly connected to the threaded hole (16).

6. The suspension device for a wire-laying pulley for overhead line construction according to claim 1, characterized in that: The trolley body (9) is provided with a wear-resistant bushing on its exterior.

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